Search Results for author: Xiaohu Yang

Found 4 papers, 2 papers with code

CCRep: Learning Code Change Representations via Pre-Trained Code Model and Query Back

1 code implementation8 Feb 2023 Zhongxin Liu, Zhijie Tang, Xin Xia, Xiaohu Yang

To fill this gap, this work proposes a novel Code Change Representation learning approach named CCRep, which can learn to encode code changes as feature vectors for diverse downstream tasks.

Representation Learning

Smart Contract Security: a Practitioners' Perspective

no code implementations22 Feb 2021 Zhiyuan Wan, Xin Xia, David Lo, Jiachi Chen, Xiapu Luo, Xiaohu Yang

Given numerous research efforts in addressing the security issues of smart contracts, we wondered how software practitioners build security into smart contracts in practice.

Software Engineering

On the Replicability and Reproducibility of Deep Learning in Software Engineering

no code implementations25 Jun 2020 Chao Liu, Cuiyun Gao, Xin Xia, David Lo, John Grundy, Xiaohu Yang

Experimental results show the importance of replicability and reproducibility, where the reported performance of a DL model could not be replicated for an unstable optimization process.

Feature Engineering

Relating the structure of dark matter halos to their assembly and environment

2 code implementations11 Mar 2020 Yangyao Chen, H. J. Mo, Cheng Li, Huiyuan Wang, Xiaohu Yang, Youcai Zhang, Kai Wang

Using decision trees built with the random ensemble method, we find that the correlation between halo concentration and assembly history is tight: more than 60% of the variance in halo concentration can be explained by assembly history alone.

Astrophysics of Galaxies Cosmology and Nongalactic Astrophysics

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